Extension table



Aug. 25, 1931. M BlNDER EXTENSION TABLE Filed Sept. 27, 1928 2 Sheets-Sheet l FlGul 'i I l L FIG.2

INVENTOR MARTIN Bl N D E R BY 2 r ATTORNEY l satented Aug.

MARTIN BINDER, or new HYDErARmivEw YORK EXTENSION TABLE I A'pp lieationfiled' September 27; 1928. Serial No. 308371.

"""f l'lieinvention-[relates to furniture const1'=uction--,more especialhy to a table having side leaves which-are normally concealed 1 underneath thetop of the table but may be caused to rise to occupy a plane flush-therewith and; when not required, may be readily and" conveniently returned to'their normal the guiding" and the-controlling mechanism "for: effecting elevation of apalr of extension (position: i I

:The invention has for its object to simphfy the construction and arrangement of leaves simultaneously to theplane of a fixed 'table top and theirreturnlto position beneath same; e

' "fircarrying-out the invention; provision is made for guiding a pair of slide members,

carryingleavesrespectively along: opposite sides of"astationarytahle top; in mannersnch Za's to cause" the same" to be elevated asthey "arewithd'rawn "from beneath said top, to-

gether with control means for preventing return otthe slide members over the same path" as they are thenpushed inwardly to 1' bring tlieleaves" in contact; with the corre- -"sipon'dingside edges of the table. These con trol means embody; also, an arrangement; for permittingftlie sl des to he returned over their normal'guideways when again drawn outwardly and thenmoved' inwardly, thus restoring the leaves carried thereby to the 'nor'mal'position beneaththe table top.

, In a co-pending application, Serial Num- @i-- 289,128; filed June 29, 1928,1I.have disclosed a somewhat similar arrangement for positioning'the slide members of suitably mounted, vertically movable slide blocks; hutin the present instance, the control mechanismior setting the" means barring return of" said movable slide blocks is provided: at

' oneside of the table-only, the said; means being common to both of said'slide blocks and a f provided and actuated'by said" control' -mechanism to interpose corresponding members when the respective slide blocks are elevated;

IQha-ve foun'dthat thislfeature is of desasocide'd advantage positioning the' leaves in that play or lost; motion in thejdifi'erent slide li lfocks and mountings will notcause nonsynf'chronous action'and jamming of partsof the control mechanism, as only onesuch ineclianism is provided;

The nature of the invention, however, will best be understood whendeseribedfin connection with theacconipanyingdrawings, in

broken away.

Fig. 2- is a transverse vertical section'taken on the line 2-2, of Fig. I of the drawings, and looking in thedirection ofthe'arrows.

Fig; 8 is a fragmentary section, and illustrates one of the leaves extended or raised to lie flush with thetable top. w i

Fig; 4 is afragmentary' vertical section taken on the line H, Fig. 1 of the drawings, and looking'in the direction of the 'arrows. v

Fig; 'fi'isa plan viewofthe support for the i elevating rollers and slide blocks, as Well as of the movable slidebarfor barring return of the said slide blocks. 5

Fig: 6 is a fragmentary front elevation thereof. v a

Figs. 7'to 11 are fragmentary plan views illustrating the different" positions assumed by the controllingmechanism andcooperatingslide' bar in the extension of thetable leaves to position flush with the table ton-and their return to a position beneath the said top;

Fig. 12is' a view in perspective of a cam member adapted" for engagement with the controllingmechanism. ,1

Referring to the drawings, I designates a rigid tabl'eimember embodying the supportinglegs 21 and fixed or stationary top, 22, which latter is rigidly secured to "the fixed support 20 through suitable. brackets or sup- I ports 23 attached to the; table memher'QO.

with a centrally" disposed rotatable gear. 30, A

so that as one'of the slides drawn outward 7 ly the other will be correspondingly extended but in opposite direction. Extension slides of this type are well-known; and are designed to support corresponding extension leaves and 36 located upon opposite sides of the table top and normally positioned and concealed beneath the same, as indicated in Figs. 1 and 2 of the drawings.

In accordance with the invention, the said slide members of each block are provided with respective cam grooves 37 and 38 which, in

turn, are designed to engage rollers 39 and 40 respectively carried by uprights 41 and 42 located upon opposite sides of a slide block and at the opposite ends thereof. As these rollers ride in their corresponding grooves, they are adapted to elevate the corresponding slide members, carrying the blocks sufiiciently to guide the leaves supported thereby to a position flush with the table top 22 or to depress said leaves to a position beneath the same when operated to return the said leaves. To effect this positioning of the leaf members to the table, the same are to bemanipulated manually, as in first drawing outwardlv from the table the said leaves and then pushing them inwardly until contact is made with the top; and in returning the same to their position beneath said top, the action is the reverse.

It will be understood, however, that pro- ,vision must be made in thus elevating the slideblocks to prevent the same from dropping back to the lowered position during the inward movement; and to this end each block is provided, in addition to perforations for guiding pins 45, with a pair of dowels 46 which. extend downwardly fromthe bottom of a said block andnormally into openings 47 provided therefor in the, support '20.

e V Whenthesaid blocks are then elevated, the

dowels are raised sufiiciently toclear the corresponding openings 47, into which they normally fit, to permit a bar member 48 to be interposed and temporarily prevent the return of the. dowels and attached blocks. This bar 48 is arranged to be longitudinally slidable with respect to the table top or support 20 as by mounting the same on the latter through screws 49 fitting corresponding longitudinal slots 50 of said bar member. The

. latter, furthermore, has end lateral extento the return of the slide blocks so that the leaves will be caused to remain in the plane of the table topwhen theyare pushed inwardly, asaforesaid. i

The sliding motion of the bar member 48 'for this purpose is effected from the'motion of one of the slides which to this end has securedto its inner side a bracket carrying a lever 56; and on one end of this lever is mounted a roller 57. The latter is adapted, in turn, to engage with a fixed cam member 58, secured to the support 20, to deflect the opposite and pointed end of said lever outwardly or away from the slide so, that it may be located behind a pin 59 fixed to and extending upwardly from the controlbar 48. The relative positions of lever 56, pin 59 and cam 58 are shown in Fig. 7 0f the drawings, for the normal position of the table leaves 35 and36 beneath'the table top 22.

As a slide is then drawn outwardly, lever 56 moves in a direction toward the pin 59, eventually getting behind the same. Thereupon, with further movement in the same direction (indicated by the arrow, F ig; 8) lever 56 will engage the'pin and cause the same to be pushed over to the position indicated by the dotted lines, Fig. 8, and move the bar 48 accordingly. In then pushing inwardly the slides, which have been raised in the meantime, andin order to bring the leaves flush with the table top, bracket 55 will move in the direction of the arrow, Fig. 9, and

cause the roller 57 to engage with a cam 60, extending from cam 58 at a higher level, to

swing the point of lever 56 to a position substantially against its slide so as to locate it ,in front of the pin 59 in its innermost posidotted line position, Fig. 10) beingforced thereto by the movement of said lever in the direction of the arrow, Fig. 10, The dowels 46, therefore, are free to return through their openings when registered therewith and the slide blocks will correspondinglydrop; and with inward movement of the leaves, thesame will be positioned beneath the table top, being guided by the cam grooves in their supporting slide members. v

In returning the said leaves to their final position beneath thetable top, the slide with leaves pushing the'latter inwardly fromtheir extreme outward position will move thereby the bracket 55 with lever56 inthe direction of the arrow, Fig. 11, and at the lower level where the roller 57 eventually engages cam 58 to swing the lever away from the slide surface and restore it to the position indicatedin Fig.- 7 for repetition of the cycle when the leaves are again to be locatedflush with the table top and then restored to position beneath the same. V v

I claim:

1. 'An extension table, comprising a fixed top, a pair of vertically movable slide blocks positioned beneath thesameand each carrying a pair of coacting slide members horizontally movable relatively thereto in opposite directions, table leaves carrie dby the.

respective slide members and positioned ,to the plane of the table top and to elevate thereby their slide blocks, and means common to both slide blocks, movable relatively to the table and actuated by the movement of a slide member of one of said'blocks to bar the return of both of the elevated blocks to normal position. i

' 2. An extension table, comprising a fixed top, a pair of vertically movable slide blocks positioned beneath the same and each carrying a pair of coacting slide members horizontally movable relatively thereto in opposite directions, table leaves carried by the respective slide members and positioned thereby normally beneath the said table top, means to guide said slide members with leaves to the plane of the tabletop and to elevate 'thereby'their slide blocks, and means common to both slide blocks, movable longitudinall of the'table and actuated by the move ment of a slide member of one of said. blocks to bar the return of both of the elevated blocks to normal position. 7

p 3. An extension table, comprising a fixed top, a pair of vertically movable slide blocks positioned beneath the same and each carrying a pair of coacting slide members horizontally movable relatively thereto in opposits directions, table leaves carried by the respective slide members and positioned I thereby normally beneath the said table top,

dowel pinscarried by the slide blocks and normallv fitting suitable openings of the table, means toguide said slide members with leaves to the plane of the table top and to elevate thereby their slide blocks, and means rommon to both slide blocks, movable relatively to the table' and actuated by the movement of a slide member of one of said blocks to cover the said openings.

' tallv movable relatively thereto in opposite directions, table leaves carried by the respective slide members and positioned thereby normally beneath the said table top, dowel bins carried by the slide blocks and normally fitting suitable openings of the table, a bar member extending longitudinally of the table having end lateral extensions adapted to cover said openings,'and means actuated from a slide member of one ofsaid blocks to longitudinally move said bar.

5. An extension table, comprising a fixed top. a air of vertically movable slide blocks positioned beneath the same and each carrying a pair of coacting slide members horizontally movable relatively thereto in opposite directions, table leaves carried by the respective slidemembers and positioned therebv normally beneath the said table top, dowel pins carried by the slide blocks and normally fitting suitable openings of the table, a bar member extending longitudinally of the table having end lateral extensions adapted to cover said openings, an upwardly extending pin carried by the said bar member, a lever carried by a slide member of one of said blocks, and a cam fixed to the table, provided with a surface adapted to engage one end of said lever as the said slide member is moved to position the opposite end of the lever behind the pin extending from said bar member and to shift the latter as movement of the slide member is continued.

6. An extension table, comprising a fixed top. a pair of vertically movable slide blocks positioned beneath the same and each carrying a pair of coacting slide members horizontally movable relatively thereto in opposite directions, table leaves carried by the respective slide members and "ositioned thereby normally beneath the said table top, dowel pins carried b the slide blocks and normally fitting suitable openings of the table. a bar member extending longitudinallv of the table having end lateral extensions adapted to cover said openings, an upwardly extending pin carried by the said bar member, a

lever carried bv a slide member of one of said blocks, and a cam fixed to the table, provided with a surface adanted to engage one end of said lever as the said slide member is moved to position the opposite end of the lever behind the bin extending from said bar member and to shift the latter as movement of the slide member is continued, said cam being provided with a further surface adapted to engage the lever upon outward return movement of the slide member to locate the said opposite end in a position ahead of the said pin for engagement therewith to return the bar member to normal position as the slide member is moved in the reverse direction.

In testimony whereof I aflix my signature.

MARTIN BINDER. 

